A Clinical and Radiographic Evaluation of DFDBA (Demineralised Freeze Dried Bone Allograft) With Amniotic Membrane (AM) in the Treatment of Periodontal Osseous Defects-12 Month Randomized Controlled Clinical Trial

Periodontitis is a bacterially induced inflammatory disease of the supporting tissues of the teeth. It is one of the major dental diseases that affect human populations worldwide and has a huge economic impact on national health care systems.The consequence of periodontitis is commonly the formation of intrabony defects.Intrabony defects are more amenable for regenerative procedures. Periodontal regeneration remains a fundamental therapeutic goal for the preservation of teeth through the restoration of health, function, and esthetics of the periodontium. Several treatment procedures like open flap debridement (OFD), autogenous bone replacement bone grafts (BRG), guided tissue regeneration (GTR), bioactive agents like EMD, rhPDGF-BB, laser assisted regeneration (LAR) have shown histologic proof of principle that the periodontal ligament apparatus can be regenerated in human studies. Intrabony defects with the depth of >3 mm and radiographic defect angle ≤ 25 are amenable for periodontal regeneration. DFDBA has stood the test of time and has shown consistent good quality patient oriented evidence in achieving periodontal regeneration with long term stability. GTR techniques have shown added advantage of space maintenance, clot stability, guided cell population, epithelial cell occlusion and the combination therapies. Periodontal regeneration with GTR and BRG demonstrates better results as compared with GTR alone. More recently in the realm of reconstructive biology, the concept of Tissue engineering (TE) has been introduced which utilizes mechanical, cellular or biologic mediators to facilitate reconstruction/regeneration of a particular tissue.

The combination of this novel biologic membrane AM and the already established BRG-DFDBA can be an added advantage in treatment of IBDs. To the best of the investigators knowledge only one clinical trial reports this combination therapy in the scientific literature. There is a need for further research in this area.